Treatment bypass reported — Dannemora (T) Lyon Mountain WWTP, Jul 23, 2026

Ended (as reported) · Dannemora (T) Lyon Mountain WWTP (NY DEC Sewage Pollution Right to Know)

Source: Dannemora (T) Lyon Mountain WWTP (NY DEC Sewage Pollution Right to Know), record 2634946866867570, reported Jul 24, 2026, 8:32 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice

Current status from this report

This report does not set a map status as of Nov 2, 2026, 4:26 PM EST. Check its dates and the status rules.

A report is not a test of the water. See how we assign statuses.

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: Dannemora (T) Lyon Mountain WWTP (federal wastewater discharge permit, NPDES, NY0239577). Outlet: not stated. Location: 44.72860, -73.91130; location source: given in the source record.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names no water. Not linked to a mapped water.

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started: Jul 23, 2026, 10:30 AM EDT
Ended: Jul 23, 2026, 1:00 PM EDT
Detail provided by the source: Times known to the minute
Reported to the source: Jul 24, 2026, 8:32 AM EDT
Published: Jul 24, 2026, 8:32 AM EDT
Source last updated: not given
Last retrieved by DirtyWaterWatch: 2026-11-02 20:40 UTC

What and how much

Type: Treatment bypass: wastewater skips one or more treatment steps.
Status in the record: Ended (as reported)
Material: “Partially Treated with Disinfection”
Volume: 1,000 gallons (estimated)
Volume as reported: “1000 Gallons Estimated”

Advice from Dannemora (T) Lyon Mountain WWTP (NY DEC Sewage Pollution Right to Know)

This report includes no advice. Check current local health notices.

Advice period: This report does not state a period. See the rule DirtyWaterWatch applies and its source.
Basis: not stated

Source and versions

Source: NY DEC Sewage Pollution Right to Know
Source record number: 2634946866867570
Original notice: Read the original notice
Earlier version: None: this is the first record
Later versions: None

Record details

Record details
Record identifier	ny-dec-sprtk:2634946866867570
Source identifier	ny-dec-sprtk
Source record number	2634946866867570
Earlier version	Not provided
Type	Treatment bypass
Status in the report	Ended (as reported)
Sewer operator identifier	ny-dannemora-t-lyon-mountain-wwtp
Sewer operator	Dannemora (T) Lyon Mountain WWTP
Federal wastewater discharge permit (NPDES)	NY0239577
Outlet number	Not provided
Outlet name	Not provided
Water named in the report	Not provided
Linked waters	Not provided
How this report was linked to the water	not linked to a mapped water
Latitude	44.729
Longitude	-73.911
Location source	given in the source record
Location accuracy, in metres	Not provided
Started	Jul 23, 2026, 10:30 AM EDT (2026-07-23T10:30:00-04:00)
Ended	Jul 23, 2026, 1:00 PM EDT (2026-07-23T13:00:00-04:00)
Detail provided by the source	to the minute
Reported to the source	Jul 24, 2026, 8:32 AM EDT (2026-07-24T08:32:41-04:00)
Published	Jul 24, 2026, 8:32 AM EDT (2026-07-24T08:32:41-04:00)
Source last updated	Not provided
Last retrieved by DirtyWaterWatch	Nov 2, 2026, 3:40 PM EST (2026-11-02T20:40:35Z)
Material	Partially Treated with Disinfection
Volume, in gallons	1,000
Volume as reported	1000 Gallons Estimated
How volume was determined	estimated
Authority	Dannemora (T) Lyon Mountain WWTP (NY DEC Sewage Pollution Right to Know)
Advice	Not provided
Advice period, in hours	Not provided
Basis of the advice period	Not provided
Original notice	https://www.dec.ny.gov/fs/data/SPRTK_Data.xlsx

Original source data

{
  "row": {
    "notificationId": "2634946866867570",
    "sprtkAirDateTime": "07/24/2026 12:32:41",
    "notificationStatus": "New",
    "facilityName": "Dannemora (T) Lyon Mountain WWTP NY0239577",
    "facilityId": "NY0239577",
    "countyName": "Clinton",
    "streetNumber": "2",
    "streetName": "sunset rd",
    "city": "lyon mountain",
    "latitude": "-73.9113",
    "longitude": "44.7286",
    "sprtkStartDischargeDatetime": "07/23/2026 14:30:00",
    "sprtkEndDischargeDatetime": "07/23/2026 17:00:00",
    "dischargeDuration": "2.5 Hours - Ended",
    "surfaceWater": "No",
    "receivingWaterBody": "none",
    "quantity": "1000 Gallons Estimated",
    "treatedState": "Partially Treated with Disinfection",
    "dischargeDescription": "little order and some floatables",
    "stepsToContain": "dug catch basin to settle discharge",
    "geoaddress": "2 Sunset Rd, Lyon Mountain, NY 12952, USA",
    "impactedArea": "Other - woods",
    "dischargeReason": "Pipe Break - blueprints show pipe in different location",
    "systemComponent": "Pipe -",
    "region": "5",
    "sprtkDischargeWaterFlow": "Overland Flow",
    "sprtkImpactAreaDesc": "woods",
    "sprtkExplanation": "blueprints show pipe in different location"
  },
  "_tab": "January 2026-August2026",
  "_row": 4511,
  "_time_basis": {
    "air": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York",
    "start": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York",
    "end": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York"
  },
  "_coords": "latitude and longitude columns swapped; a street-address geocode chosen by the notifier",
  "_event_type_basis": "partially treated discharge (treated state)",
  "_water": {
    "why_none": "the notifier says the discharge does not reach surface water"
  },
  "_volume_note": "first (New) notice: NY-Alert requires a volume and an end time up front, so this figure is the notifier's estimate or placeholder, not a measured total",
  "_chain": {
    "id": "key:NY0239577|2 sunset rd lyon mountain|2026-07-23T14:30Z",
    "basis": "facility + address + start",
    "position": 1,
    "of": 1,
    "head": "ny-dec-sprtk:2634946866867570",
    "latest": "ny-dec-sprtk:2634946866867570",
    "notices": [
      {
        "id": "2634946866867570",
        "status": "New",
        "aired": "2026-07-24T08:32:41-04:00"
      }
    ]
  }
}

Staff names, email addresses and phone numbers are removed from source data before it is stored.